APA
(1991). National Symposium on Recent Advances in Drought Research, 10-13 December 1991, Kottayam. Kottayam: Rubber Research Institute of India.
Chicago
1991. National Symposium on Recent Advances in Drought Research, 10-13 December 1991, Kottayam. Kottayam: Rubber Research Institute of India.
Harvard
(1991). National Symposium on Recent Advances in Drought Research, 10-13 December 1991, Kottayam. Kottayam: Rubber Research Institute of India.
MLA
National Symposium on Recent Advances in Drought Research, 10-13 December 1991, Kottayam. Kottayam: Rubber Research Institute of India. 1991.
